Q.

Read the passage given below carefully and answer the following questions from (i) to (v).

The graph below shows the percent of undigested carbohydrates, proteins and fats as the food passes through the human digestive tract. X axis represents sequential structure that makes up the digestive tract.

 

(iii) In which organ does the first digestion of starch occur in humans

1 Stomach  
2 Small intestine  
3 Large intestine  
4 Mouth  

Ans.

(4)